Patents by Inventor Hatsug Ishida

Hatsug Ishida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • General approach to nanocomposite preparation
    Patent number: 6271297
    Abstract: A blend of a polymer, swelling agent, and a sheet silicate and/or sheet silicone filler is disclosed. The swelling agent makes it possible to intercalate the sheet silicate and/or sheet silicone with a variety of different polymers. The swelling agent is a material with sufficient mobility such that it can enter between the sheets of the silicate or silicone and increase the spacing between sheets. The swelling agent desirably has a solubility parameter that facilitates entry of both the swelling agent and matrix polymer between the layers of the filler promoting intercalation and/or exfoliation.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: August 7, 2001
    Assignee: Case Western Reserve University
    Inventor: Hatsug Ishida